Home / 5,087.30-7,631.08-2,749.10

Finding the Fourth Proportional to 5,087.30, 7,631.08 and 2,749.10

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Solution

The fourth proportional to 5,087.30, 7,631.08 and 2,749.10 is: 4,123.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,087.30 : 7,631.08 = 2,749.10 : x
  2. Step 2: Convert to fraction form
    5,087.30/7,631.08 = 2,749.10/x
  3. Step 3: Cross multiply
    5,087.30x = 7,631.08 × 2,749.10
  4. Step 4: Simplify right side
    5,087.30x = 20,978,602.03
  5. Step 5: Solve for x
    x = 20,978,602.03/5,087.30
  6. Step 6: Final answer
    x = 4,123.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.